Siemens SIMATIC S7-1500 Automation System User Manual

Configuring
7.1 Address assignment
S7-1500 Automation System
System Manual, 01/2013, A5E03461182-01
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7.1.2 Addressing digital modules
Introduction
The addressing of digital modules is described below. In your user program, you require the
addresses of the channels of the digital module.
Digital module addresses
The address of a digital module's input or output is composed of the byte address and the bit
address. The channels of the digital module are assigned bit addresses.
If you enable the value status for a digital module, then additional bytes are allocated in the
input address area. Each bit is assigned to a channel and returns information about the
validity of the digital value (0 = incorrect value).
The value status is a binary additional information of a digital input signal. The value status is
entered simultaneously with the process signal in the process image input and provides
information about the validity of the signal.
Example: I 1.2
The example consists of:
I Input -
1 Byte address The byte address depends on the module start address
2 Bit address You read the bit address from the module
When you insert a digital module into a free slot, STEP 7 assigns a default address. You can
change the proposed default address in STEP 7.

Siemens SIMATIC S7-1500 Automation System Specifications

General

Series	SIMATIC S7-1500
Programming	TIA Portal (Totally Integrated Automation Portal)
Protection Class	IP20
CPU	Various models available (e.g., CPU 1511-1 PN, CPU 1518-4 PN/DP)
Controller Type	Modular Controller
Programming Languages	LAD, FBD, STL, SCL, GRAPH
Communication Interfaces	PROFINET, PROFIBUS, Ethernet, OPC UA
Digital Inputs	Varies by model and expansion modules
Digital Outputs	Varies by model and expansion modules
Analog Inputs	Varies by model and expansion modules
Analog Outputs	Varies by model and expansion modules
Backplane Bus	High-speed backplane bus for fast communication between modules
Redundancy	Supported with specific models and configurations
Safety	Integrated safety functions available
Scalability	Highly scalable with modular expansion
Operating Temperature	0°C to 60°C